[Object] To provide a method for producing a vinyl ether polymer containing a hydrocarbon group in a stable and efficient manner, wherein decomposition of the monomer and generation of polyacetal are suppressed. [Means for solving problem] The method for producing a vinyl ether polymer containing a hydrocarbon group according to the present invention comprises the step of polymerizing vinyl ether represented by the following formula (1): ##STR00001## wherein R.sup.1 represents an aliphatic hydrocarbon group having 1 to 10 carbons or an alicyclic hydrocarbon group having 3 to 10 carbons,
in the presence of water as a polymerization solvent and an organic azo-based compound as a radical polymerization initiator, under pH of 6 or more.

Provided are excellent coated lithium-nickel composite oxide particles with which it is possible, due to the high environmental stability thereof, to minimize the incidence of impurities owing to absorption of moisture and carbon dioxide gas, said particles having high adhesiveness such that the coating layer does not easily delaminate, and having lithium-ion conductivity. The coated lithium-nickel composite oxide particles, in which an electroconductive polymer is cross-linked to the lithium-nickel composite oxide particles by a three-dimensional structure, are electrically and ionically conductive, and the compound is capable of suppressing the transmission of moisture and carbon dioxide. It is therefore possible to provide coated lithium-nickel composite oxide particles for a lithium-ion cell positive-electrode active substance that is excellent for use in a lithium-ion cell.

Provided is particulate of a cathode active material for a lithium battery, comprising one or a plurality of cathode active material particles being embraced or encapsulated by a thin layer of a high-elasticity polymer having a recoverable tensile strain no less than 5%, a lithium ion conductivity no less than 10.sup.6 S/cm at room temperature, and a thickness from 0.5 nm to 10 m, wherein the polymer contains an ultrahigh molecular weight (UHMW) polymer having a molecular weight from 0.510.sup.6 to 910.sup.6 grams/mole. The UHMW polymer is preferably selected from polyacrylonitrile, polyethylene oxide, polypropylene oxide, polyethylene glycol, polyvinyl alcohol, polyacrylamide, poly(methyl methacrylate), poly(methyl ether acrylate), a copolymer thereof, a sulfonated derivative thereof, a chemical derivative thereof, or a combination thereof.

The present invention provides a functional material, its preparation method, and an organic light emitting diode display panel, which belongs to the display technical field and can solve the pollution problem in current organic light emitting diode display panels. The functional material comprises an inorganic mixed powder with a modified layer, the inorganic mixed powder comprising boron oxide, sodium oxide, lithium oxide, zirconium oxide, aluminum oxide, zinc oxide, titanium oxide, silicon dioxide, calcium oxide, silver complexes, silver phosphate, silver nitrate, tourmaline, silver thiosulfate, carbon nanotubes, aluminum sulfate, manganese, manganese oxide, iron, iron oxide, cobalt, cobalt oxide, nickel, nickel oxide, chromium, chromium oxide, copper, copper oxide, magnesium oxide, boron carbide, silicon carbide, titanium carbide, zirconium carbide, tantalum carbide, molybdenum carbide, boron nitride, chromium nitride, titanium nitride, zirconium nitride, aluminum nitride, chromium boride, Cr.sub.3B.sub.4, titanium boride, zirconium boride, tungsten disilicide, titanium disilicide and the like; the modified layer being generated by a reaction of a dianhydride and a diamine.

The present invention relates to a conductive paste, which imparts an electrode formed therefrom with enhanced adhesion strength to a semiconductor substrate by incorporation of LiAlO.sub.2 (lithium aluminate) therein. The present invention further relates to an electrode formed from the conductive paste and a semiconductor and in particular, a solar cell comprising the electrode produced therefrom.

Setter plates are fabricated from Li-stuffed garnet materials having the same, or substantially similar, compositions as a garnet Li-stuffed solid electrolyte. The Li-stuffed garnet setter plates, set forth herein, reduce the evaporation of Li during a sintering treatment step and/or reduce the loss of Li caused by diffusion out of the sintering electrolyte. Li-stuffed garnet setter plates, set forth herein, maintain compositional control over the solid electrolyte during sintering when, upon heating, lithium is prone to diffuse out of the solid electrolyte.

A novel coating composition comprising, by dry weight based on total dry weight of the coating composition, i) from 20% to 45% of emulsion copolymer being a copolymerization product of a monomer mixture comprising, by dry weight based on the total dry weight of the emulsion copolymer, from 30% to 80%, of ethyl acrylate; from 20% to 70%, of a vinyl monomer; and from 1% to 4%, of an ethylenically unsaturated carboxylic acid containing monomer; ii) from 0.5% to 5% of a paraffin wax; iii) from 30% to 55% of a pigment; and iv) from 0.003% to 0.5% of lithium hydroxide.

A novel coating composition comprising, by dry weight based on total dry weight of the coating composition, i) from 20% to 45% of emulsion copolymer being a copolymerization product of a monomer mixture comprising, by dry weight based on the total dry weight of the emulsion copolymer, from 30% to 80%, of ethyl acrylate; from 20% to 70%, of a vinyl monomer; and from 1% to 4%, of an ethylenically unsaturated carboxylic acid containing monomer; ii) from 0.5% to 5% of a paraffin wax; iii) from 30% to 55% of a pigment; and iv) from 0.003% to 0.5% of lithium hydroxide.

An ionomer may include a neutralized blend of an ethylene acid copolymer and an aliphatic, mono-functional organic acid. The ethylene acid copolymer may be the polymerized reaction product of: ethylene, alkyl acrylate; optionally monocarboxylic acid monomer; and unsaturated dicarboxylic acid monomer. Another ionomer may include a neutralized blend of a first ethylene acid copolymer, a second ethylene acid copolymer, and an aliphatic, mono-functional organic acid. The first ethylene acid copolymer may be the polymerized reaction product of ethylene; monocarboxylic acid monomer; and optionally alkyl acrylate. The second ethylene acid copolymer may be the polymerized reaction product of: ethylene; alkyl acrylate; and unsaturated dicarboxylic acid monomer. Either blend may comprise from 5 to 40 wt. % of the aliphatic, mono-functional organic acid. At least 30 mole percent of total acid units of either blend may be neutralized with a magnesium cation of the magnesium neutralizing salt.

The present invention provides a resin composition for a secondary battery electrode that is excellent in the dispersibility of active materials, resistance against electrolyte solutions, and coating film density and capable of achieving both high conductivity and adhesion. Provided is a resin composition for a secondary battery electrode, the resin composition containing: an active material; a non-aqueous solvent; and a polyvinyl acetal resin, the polyvinyl acetal resin including a structural unit containing a halogen atom, and having a Vicat softening temperature of 50? C. or higher and 150? C. or lower.